cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A280087 Numbers n such that Product_{d|n} sigma(d) = Product_{d|n+1} sigma(d).

Table of values

n a(n)
1 14
2 1334
3 1634
4 2685
5 33998
6 42818
7 84134
8 122073
9 166934
10 289454
11 383594
12 440013
13 544334
14 605985
15 649154
16 655005
17 1642154
18 2284814
19 2913105
20 3571905
21 3682622
22 5181045
23 6771405
24 10074477
25 10195305
26 12825266
27 15751533
28 17714486
29 17727554
30 19886385
31 25096665
32 33422277
33 34577834
34 34883654

List of values

[14, 1334, 1634, 2685, 33998, 42818, 84134, 122073, 166934, 289454, 383594, 440013, 544334, 605985, 649154, 655005, 1642154, 2284814, 2913105, 3571905, 3682622, 5181045, 6771405, 10074477, 10195305, 12825266, 15751533, 17714486, 17727554, 19886385, 25096665, 33422277, 34577834, 34883654]